Scan parameters and the diffusion emphasis effect in diffusion-weighted imaging using a motion-probing gradient preparation pulse.

Daisuke Takahashi, Hajime Tanji, Tomoya Yamaki, Makoto Obara, Yoshio Machida

Research output: Contribution to journalArticlepeer-review

Abstract

Diffusion-sensitized driven equilibrium preparation (DSDE) is a gradient echo (GRE) diffusion-weighted imaging (DWI) sequence that employs a motion-probing gradient (MPG) preparation pulse and phase cycling. In DSDE, several scan parameters of the MPG preparation pulse and the GRE sequence affect diffusion sensitivity. Our investigation of the relationship between these scan parameters and the diffusion emphasis effect revealed the importance of "prep.TE" in the MPG preparation pulse and "TFE shot interval" in the gradient echo sequence. Appropriate choice of these parameters allows DSDE to provide a similar DWI to that of conventional single-shot SEEPI DWI. We therefore concluded DSDE to be a useful DWI method.

Original languageEnglish
Pages (from-to)637-645
Number of pages9
JournalNihon Hoshasen Gijutsu Gakkai zasshi
Volume70
Issue number7
DOIs
Publication statusPublished - 2014 Jul

ASJC Scopus subject areas

  • Medicine(all)

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